It takes guts to say something that is against the established norm. People will say it’s crazy. However, if you care to look back 100 years, there are heaps of things that were “common knowledge” that we now know are themselves a bit crazy.
When you have a theory or an idea about something, don’t apologize for it or feel the need to defend the statement by saying “but” and offering some explanation nobody cares about (they already think you’re a bit crazy) just let the idea or thought stand on its own and let the bullets whistle around you.
You’re the one who had the guts to take the risk of being ridiculed to put your views out there. You’re the one who isn’t so scared of being challenged that he hides in the crowd of public opinion. Be proud of yourself for that and let the jokers laugh.