Traditionally democratic countries voters have voted in mainstream right or left wing parties. Think in the UK Conservatives and Labour. You may disagree with some policies or the way they run the country, but by and large they stick to the rules about how to do business.
Across a number of countries we have extreme right wing Prime Ministers or Presidents who have been voted in, and are no longer following the rule book. Think of ex President Bolsanaro in Argentina who has been charged in a coup attempt after he lost the election.
The most pertinent example is Trump with the help of Musk, who is issuing executive orders abolishing government watchdogs, firing people who attempting to stop either acting illegally e.g. security guards who would not let them access confidential documents. Basically acting as a dictator and bypassing the rest of government.
So how the right mainstream parties failed so that Trump was selected as a candidate and then voted in by the electorate? Traditionally if voters did not want the mainstream left wing candidate, they would vote for the mainstream right wing candidate. Remember in the US everyone gets to vote on who should be the candidate for the political parties. So the electorate voted for Trump to be the candidate for the Republicans.
So how have mainstream right wing political parties failed the electorate across a number of countries and pushed them towards the extreme right wing?