Earlier quoted context omitted.
Is there any evidence of Brendan Eich engaging in any actual discrimination against anyone based upon their sexual identity? To borrow your metaphor, you are not being bigoted against someone who kicks puppies. You are being bigoted against someone who isn't bigoted against people who kick puppies.
No, I'm bigoted against people who send money to organizations who support kicking puppies. Just to stretch this metaphor to the breaking point. EDIT: His donation is actual discrimination based on someone's sexual identity.
Having an opinion and donating money to a cause is not remotely the same as refusing to hire LGBTQ individuals or refusing to sell/rent a house to them.