This is key in the movement towards inclusion! It is important that we understand that not everyone is well educated about LGBTQ+ issues, and that their offensive actions might not even be intentional, so we can peacefully attempt to educate them and guide them. People can change, so let's give them a chance instead of cancelling them on their first misstep.
If they refuse to understand, or make clear their offenses were intentional, then it is a different story and the arguments I presented do not apply. We still need to act with a lot of consideration, though.