Heck, even the letters I type I have learned from other people.

This is false equivalence. Learning letters, words, and their meanings, and comparing this to adopting the thoughts and opinions of others is akin to saying learning musical notes and how they harmonize is equivalent to adopting musical compositions. By this logic, Newton, Einstein, Plato etc shouldn't be attributed with their works, but those human beings who formed the individual words.

Vocabulary are nothing but building blocks, they are not the same as thoughts/opinions, which are a finished product. The point I was trying to make is that you can admire the finished products of others, that's great. But don't state them as fact. "assert/dismiss without evidence" is not an opinion rooted in fact and shouldn't be asserted as such. I'm sure you can think of examples where this type of reasoning is completely irrational and quite absurd.

I don't believe in tooth fairies, should I believe them?

The ramifications of the existence of a tooth fairy should determine your answer.

As I've stated previously, believing something without evidence is the least reliable path to knowing and believing the truth.

I thought you have dismissed religion. Why are you defining faith squarely by the definition given by the religion you have previously dismissed?