1) Activity along the plates does not confirm drifting.
2) Says who?
3) The evidence suggests otherwise. What about the strata in Iceland being almost identical to strata located in Australia?
4) I assume you observed this? [interpreters note - he is being sarcastic] There are many other theories that use the same evidence you use but reach different conclusions.
5) It is not the size that matters, but how you use it.
6) Why would you expect this?
7) The myth of continental drift is widely discredited by objective scientists around the world. Just because you cannot see them does not mean they do not exist. If you think there are only four of us, you are sadly mistaken.
We are still waiting for you to show us some research that is not just a quick browse in Wikipedia. You are saying all the time that there are "many other theories", theories that are "widely discredited by objective scientists", "many other theories that use the same evidence", and so on. Where are those objective scientists? What are their names? What other theories are there that discredit continental drifting? (the kind we all know about, that is, with continents moving thousands of kilometers, that is).
While many details about the exact way continental drifting occurs are hotly debated, I know of just a handful of "scientists" that reject continental drifting altogether: James, Adolf and Wilmore. Where are the rest? You say there are many other theories. What are they?
Just so you start reading real science, try this article:
http://www3.interscience.wiley.com/journal/119383776/abstract. Like so many others, it explains how the geomagnetic reversals show how the continental drifting has occurred for millenia. If your speculation were true, you would not be able to find a continuous geological record of the creation of land close to the main geological hotspots ranging eons.
And, yes, you can see how (just as an example) several species of bipedal carnivores, all similar to the Tyrannosaurus Rex, appear in every continent, with the possible exception of Antarctica. By comparing the different anatomical differences and dating of strata where the fossils were found we can see how they all came from common ancestors. But of course, you know this since you work in Evolutionary studies and therefore have read extensively about the subject. Or... have you?