Dying out? Honestly, I don't know. In Cataluña (North East) they have been already banned, but, if it's going to dissapear completely it's hard to tell. I hope so, and I'm pretty sure that almost everyone in the new generation also does, but it's really engrained in some groups with a very traditional point of view, who think that making bullfighting dissapear will lead to a lose of cultural identity. It's something much more popular in our grandparents generation than in ours, but it seems like there will always be someone to continue with it.
And yes, there are many groups against bullfighting (Antitaurinos) the motto is "la tortura no es cultura" (torture is not culture) here's a photo of one of their protests: http://estaticos.elmundo.es/elmundo/imagenes/2009/07/05/1246803904_g_0.jpg

I've heard he contributed to the development of the theorical part, but when he saw that it was a mistake he abandoned the project.
But he is remembered as a pacifist. So, now you say it, i'm not really sure about what happened.

Nope, he was from Austria

I'm dying

A hero

Then i misunderstand the comment

And lose a lot of strenght. They probably won't be able to walk normally the first weeks after the experiment

So being an atheist, a non practicant christian or from another religion makes you more likely to be a bad person? I don't really think so.