Not all opinions are valid. If my opinion is that the world population should be lowered by vaccines, healthcare, and buying vast amounts of farms in the US, while pushing fake meats, vaccines, and being not a physician myself; I would not say those are valid opinions. Bill Gates may truly believe them, but when people say, you need to validate my opinion, or everyone's opinion is valid, they don't mean the opinion isn't a fake one to trick someone. They mean it is societally acceptable. There are unacceptable views held by some Americans. Things like abortions are unacceptable when you understand what abortion is. The view that you can kill someone, whether out of inconvenience, or "concern" for the upbringing (or lack thereof) does not dictate right to life, at least not under the US Constitution.