The most sociopatic “winners” of the current system will always laud whatever was done to establish the system in which they get so much and decry anything that might overthrow or even meaningfully change that system.

Those who have a more empathic view of things, even when they too are considered “winners”, have a different posture if they think the current system isn’t working well for most people because they don’t think only about personal upside maximization at any cost for the rest.

As it so happens, caring for more than just “me, me, me” is what distinguishes leftwingers from rightwingers.

So this is a great way to spot fake leftwingers in or seeking positions of power and wealth: no matter how “progressive” their words are in general, when it comes to the current system they’ll display exactly this kind of hypocrisy of being against any kind of actions that will change the current system whilst lauding the very same kind of actions when they installed the current system, since their one true drive is “What’s in it for me”, a rightwinger’s motivation.