We humans have goals, as in “satisfaction from winning”, or as in “solace from reaching some idea the correct way so it’d likely be true”.
Theirs is not to be correct, it’s to defeat you, to win, to dominate etc.
A conversation where your counterpart see themselves as your opponent just should end once you see that. Also it would be fair to inform them that this is ape behavior, but sometimes unwise sadly.
Also the approach that an argument as in “opposition to each other” leads to truth is more or less the same thing as dialectics. And dialectics do not have any scientific value (we are not pursuing studies of “scientific communism” here).