All Tobey did was cry and yell Mary Jane a whole lot. I liked the movies, but I never felt he was right as Spider-Man.

He was an emotionless corpse who just so happened to cry but you didn't believe it. Tobey was young. I think if he did it now he would be quite good but the acting he did was horrible.

Tobey might be a better Peter Parker but Andrew Garfield smoked Tobey as Spidey in just one film.

It is a preference thing, of course, but personally I prefer Andrew Garfield, even though he is too cool as Peter Parker, but near perfection as Spidey.

That's what's tough for me to follow as well. You've already played one movie with Spidey following the established canon, so why bother changing that for the sake of pandering?

Theyre saving that card for Human Torch

Some roles can be played by any actor of any race. Doesn't have to follow comic book doctrine to the letter. As long as everything is taken into consideration for example if you made Peter Parker Asian then it follows that we must see Spidey and Peter through Asian sensibilities and way of being. Even if he was "american".
As a creative person, writers, directors actors. These parts offer lots of interesting ideas and situations to play with.

All this being said, some roles would not benefit from genre or race change because viewers may not connect with story due to these drastic changes.

It a shame really, prejudice and judgement run deep in our fibers and its never more apparent than when discussing our favorite heroes.

SPOILER:

Already happened when Peter Parker died in the comics.

I only want my superhero movies to illustrate entertainment to me. I don't want political statements and attention grabs. If it ain't broke, don't fix it.

After all the flak that One More Day got just for breaking the couple up, think of how much they'd catch if they reversed MJ's plumbing!