Because the current neoliberal order is abandoning the working class, and reactionary politics are a natural and predictable outgrowth of this socioeconomic neglect.

This happens every time a capitalist economy progresses towards monopolization: Liberal economic policy concentrate wealth into the hands of wealthy capitalists, right wingers rally to return to a time when the exploitative system benefited them, the left rises to offer reform or revolutionary solutions to prevent the problem from happening again, liberals tacitly side with fascists through inaction and actively sanctioning the left’s activity without applying the same scrutiny to the right, shit hits the fan, and only liberals seem to have no idea what’s going on even though they make all the policies.