Are people blindly loyal?

People have different ideas as to what loyalty actually is.

Companies spin this shit all the time with their 'loyalty bonuses' or 'how well you behave amongst different levels of your corporate ladder when it comes to considering you for promotion.

And then you have supposedly well educated people like the current U.S. President, suggesting that if you choose to show your disgust/anger/mistrust at the fact some police officers are killing folk 'un-necessarily', by refusing to stand for the national anthem. You are the one who is disloyal.

So we live in a time when 'Loyalty' gets defined by whoever is criticizing you !

They can be to a cause or person they believe in. In general.
Look at the loyalty religions and political parties generate.

No never in general.
Some are
Some arent

Yes.