Maybe it's a language problem.
I'm going to try to say it super simply.
What you are asking for CANNOT be done the way you want. period.
None of those who have answered you (neither do I) own or have the power to change Itch's TAG system.
We are not trying to convince you of anything, I am not interested in whether you think the TAG system is bad or good or what you think you know about torrent.
Just to help, we try to explain to you how TAGs work in Itch so that you can make better search for what you want. But instead of understanding that we are trying to explain to you. You end up creating arguments that are of no use. Well yes, to never want to help you again.