The West think they too good to have an far right incompetent buffoon as leader even when they have Bojo, had Trump, Berlusconi and others. Meanwhile Orbán is on the fourth run, Putin since '00, Erdogan since '03 (the last two are not in UE, but not for the lack of Turkey trying). All that is needed is to win one election, and win the following one.
The west does this, but bit by bit.
Brits thought there was no way Brexit would pass, until they woke up the next morning.
Americans thought there was no way Trump could win even after Brexit, and yet….
Our countries (especially America) are now very very very disabused of this notion. Anti-Trump Americans are very freaked out at the possibility of what he almost did and could still do, trust me.
The problem is each major Western country has it's own personal arrogance, and in this regard you're absolutely right. Meaning basically that the French might be all "Oh haha. please we're not like the (lol) Yankees and Brits, we already thought of them as embarrassing simpletons. FRANCE would never do THAT."
Each Western country is as you say until it happens, and learn nothing at all from the other western countries who went through that process.