I wonder about who doesn't do any real science 
I wonder what kind of science did you perform. I prefer theoretical approach, usually based on numbers. I shared few simple ideas in multiple threads on this forum. Some of them destroyed FE argument that no FEer ever bothered fixing. Yet.
The people who see that a round world isn't possible and we're getting manipulated by the leaders of our world
I can't see why a round world isn't impossible nor I can't see we're getting manipulated. I have pretty good scientific mind and I can think of myself.
or the people who are blinded and manipulated.
You mean those uneducated people who are easily manipulated into believing the Earth is flat and they can take any rubbish "proof" or
"argument" for real as an ultimate knowledge? I saw hundreds of such people across the youtube. They differ no more than the people described by you.
You say FES isn't doing any real science? Just speculation? We do science, we're looking for logical methods to explain our world and the whole universe.
Since the FES base their "scientific" knowledge on XIX century book, yes.
Btw, current science does the same as you described. But it is likely that most FEers simply reject them. Because? I don't know. Maybe non-existing conspiracy? On the other hand, FE science is rejected, because it doesn't satisfy the definition of science. Usually.
People who believe in round earth always start trolling if they don't know something and start writing things like there could be also a dragon under the earth or a dishwasher.
They troll because this forum lacks of any real scientific approach. Most threads where FEers argument anything are based on ad hoc explainations, lack of evidence and unjustified claims.
At the same moment FE-people are looking for scientific answers to any questions!
I believe some are.
I can tell you that I got to know that there are only speculations on what is on the other side. Someone claim there is UA that somehow acts on the entire universe, someone claim there is just bunch of rocks that are the source of meteors. Someone even claim that Russians made a 10km+ drill to dig into the other side.
Why don't you start argumenting scientific?
I tried. Most of the time I brough some serious argument, I received no real answer or I was ignored.
Why do you just say that FES is wrong?
Because I provided serious arguments, that were ignored. Because some of FE"T" parts are internally contradicting and noone has ever bothered providing me anything but hand-waving and inderict answers.
If you're right show your arguments!
Right about what? The Earth isn't flat? Simple - Sun sets are impossible on FE (because they parot Rowbotham, who had 0 idea about the perspective). That is it. One argument is enough to show that the model is wrong. And since it refers to basics, that is even worse for the model.