The "anti-LGBT stuff" is enough imo. It may be "small fries", but I'd rather not support someone (or their company) when they clearly don't support me.
hijacking affiliate codes is unethical and should be stopped but don't actually affect me in any way.
I mean, alright. But you could say "I don't care" about any infraction of freedom and/or trust.
I trust software to not modify my intent, any software that does so without asking can not be trusted in any way.
I do. In fact I use 5 different browsers on a semi-regular basis. None of them are vanilla Firefox. Most of the "more private" browsers simply don't work on many pages.
hijacking affiliate codes is unethical and should be stopped but don’t actually affect me in any way.
It does affect you because it would have meant that you couldn't claim cashback offers from sites like TopCashback and Rakuten, as the cashback site's affiliate code would have been replaced with Brave's.