Does anyone really think that parents put this much effort into naming their babies?
No, I am saying that "Vladimir Putin" is probably not the real name (given to him by his parents) of the president of Russia.
Why not? Isn't Vladimir a perfectly reasonable name to give a Russian baby boy born in in the early 1950s?
Do you have some citation for the claim that Vladimir is a common name in Russia?
I didn't claim that it was common name. I asked why you think that it shouldn't be a reasonable name.
But since you asked:
A common name throughout Russia, Vladimir is featured in novels by Turgenev and Pushkin.
Have some better source? This one is obviously unreliable, "Vladimir" definitely doesn't mean "renowned prince", the Russian word for "prince" is князь ("kniazy", from the same root as English "king") or принц ("prints", from Latin "princeps").
Regardless of the origin or meaning of the name, the name Vladimir Putin is used to identify the current leader of Russia. I don't understand what you're confused about.
I simply find it unbelievable that a person who rules half of the world is named "ruler of the world". Unless it's a super-common name where he was born.
You leap to the notion that the human with that name must not exist because the coincidence is too much of a coincidence? Seriously? That's very, very odd and downright silly. Especially when there's kind of a lot of evidence the human exists regardless of the name. Don't you think the overwhelming evidence of Putin being the president of Russia completely obliterates any notions regarding his name origin and its effect on his existence?
There's a term for this:
An aptronym, aptonym, or euonym is a personal name aptly or peculiarly suited to its owner.
Here's a list of aptronyms:
Jules Angst, German professor of psychiatry, who has published works about anxiety (angst)[4]
Michael Ball, English footballer[5]
Colin Bass, British bassist in the rock band Camel[4]
Lance Bass, bass singer for the American pop boy band NSYNC[6]
Mickey Bass, American bassist and musician[7]
Sara Blizzard, meteorologist (television weather presenter) for the BBC[4]
Usain Bolt, Jamaican sprinter[8]
Doug Bowser, president of Nintendo of America (Bowser)[9]
Russell Brain, 1st Baron Brain, neurologist[10]
Rosalind Brewer, executive at Starbucks and a former director at Molson Coors Brewing Company[11][12]
Christopher Coke, drug lord and cocaine trafficker[13]
Margaret Court, Australian tennis player[5]
Corona Rintawan, Indonesian physician who leads Muhammadiyah's command center for the COVID-19 (coronavirus) pandemic[14]
Thomas Crapper, sanitary engineer[5][15]
Josh Earnest, the third press secretary for the Obama Administration[16]
Rich Fairbank, billionaire and CEO of the Capital One bank, which holds the Fairbanking Mark for offering fair banking products[17][18]
Cecil Fielder and Prince Fielder, baseball players (fielder)[19]
Amy Freeze, American meteorologist[20]
William Headline, Washington Bureau Chief for CNN[21]
Igor Judge, English judge and Lord Chief Justice[22]
Richard and Mildred Loving, plaintiffs in Loving v. Virginia, which legalized interracial marriage throughout the United States[23]
Auguste and Louis Lumière, pioneering 19th century filmmakers (lumière means "light" in French)[24]
Chris Moneymaker, American poker player and 2003 World Series of Poker champion[25]
Josh Outman, baseball pitcher[26]
Francine Prose, American novelist[27]
Jonathan Quick, American professional ice hockey goaltender for the Los Angeles Kings of the National Hockey League[28]
Bob Rock, Canadian music producer best known for his works with rock acts such as Metallica and Aerosmith[29]
Marilyn vos Savant, American columnist who has been cited for having the world's highest-recorded IQ (savant)[30]
Larry Speakes, acting White House Press Secretary for the White House under President Ronald Reagan[31]
Scott Speed, an American racecar driver who has raced in a variety of motorsport, including Formula One and Formula E[32][33][34]
Anthony Weiner, American politician involved in sexting scandals[20]
John Minor Wisdom, American judge[7]
William Wordsworth, English poet and advocate for the extension of British copyright law[35][36][5]
Early Wynn, baseball pitcher, member of the 300 win club[37]