Can't say I agree with the notion that Lucas is a greedy fat phuck. There is no real practical benefit that he'd receive from donating tons o' money, for one, and when you look at his history, he's shown to be pretty consistent in his philanthropist mentality. He's been donating money to charity for decades, is fiercely liberal and donates lots of money to liberal and humanitarian causes (has even testified before the House of Congress to get a free, nationwide wireless network set up for schools), spent 23 years pushing to get Red Tails made (even going so far as to completely fund the entire film from start to finish with his own money, after every producer refused to fund it) because of his desire to promote black actors and films with all-black casts, and has been pretty damn lax with his IP (compared to, say, Games Workshop, who've recently re-named one of their most iconic factions, that has existed unchanged since the 80's, because they couldn't patent its original name).
So... why the hate? "He makes it hard for me to debate about these fictional characters" seems like a pretty nonsensical justification for bearing what seems to be a personal grudge against the man.
I mean hell, you have misgivings about Star Wars' canon policy, you should be kissing the ground out of love for Lucas' canon policy. Games Workshop has outright stated that Warhammer 40K has zero canon hierarchy in it- everything that exists with the 40K label is equally canon to one-another, even if they outright contradict each other. Try debating under that context.