Why does Donald Trump have a hard time accepting other people’s decisions?

Spain says they didn’t want the USA to use their bases for strikes on Iran.

Donald Trump says “Nobody is going to tell us not to use it” and “we can just fly in if we want and use it.”

Updates
2 mo
It not an American base.
They are jointly operated military bases that are under Spanish Sovereignty. Since they are under Spanish Sovereignty that gives Spain the legal right to refuse the USA to use it.
It doesn’t matter if both countries are NATO countries. The USA is still required legally to have consent if they want to use it.
If they use it without permission from Spain then that is illegal.

Updates
2 mo
because the joint military bases in Spain are built on land located in the country Spain that means the Spanish government has the authority and the greater power to control what happens there.
Why does Donald Trump have a hard time accepting other people’s decisions?
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