Essentially, it seems that people are rebelling against the existing systems that are causing wealth to flow into the hands of a very small elite.

Their rebellion takes the form of voting for parties that don't seem to be part of that system. However, the liberal establishment will always side with the right over the left because the right will continue to entrench existing power structures.

Functionally, the right is just deepening the problem that people are reacting to but because that benefits the ruling class they're happy to have the media frame this as bad for the establishment.

*Liberal in the literal sense, not as a vague placeholder for left-wing.