The big picture isn't that different in Europe. Most EU countries are also oligarchies, just with a lot more bloody histories and national traumas. The social safety net is kept to the level of remembrance of those traumas. Once people start forgetting them, the oligarchs will take away the rights one by one.

The response to US betrayal is weak because our oligarchs own lots and lots of investments in the US. Our banks invest in US treasuries and especially in the US real estate market. They then leverage those US investments against normal people in the EU and consolidate more and more power (and assets) and blame normal people for not having investments or not working enough. They are the ones who take away EU GDP and park it in US investment tools. Forming businesses is more risky in many EU countries due to extremely conservative policies of those same banks who prefer US investments instead.

This is a tired old trope that really has no basis in reality. There have been no large scale policy changes favoring billionaires since the campaign finance laws changed. In two out of the last 3 elections, the major corporate money backed candidate lost. The government is run by the 24 hour news cycle and the attention economy, not by the decree of billionaires. We operate firmly under the tyranny of the majority.

The problem are not Trump or the billionaires, but the majority of the American people who support them. They knew what they were getting.

It likely isn't over with him. Trump is just the frontman and possibly fall guy for project 2025/federalist society. They are his entire cabinet and their plan was to replace all government workers with their own loyal people.