In simple words, it is easy to understand about the Nazi's. When people are forced into what we and other countries are being forced into, austerity (for the poor)
etc, whilst those who 'have it' are being seen as 'keeping it', there then comes a limit, when enough is enough. Seeing the 'natives' of a country suffering, whilst 'newcomers' are given the golden spoon, unemployment rising all the time, whilst those 'newcomers' seem to be taking peoples jobs. Anarchy starts raising its ugly head. It starts in a small way with 'protest votes' then onto the streets with marches, then into civil disobedience, followed by riots.
Along come the Nazi Party, fuelling the demo's etc, and promising a way out........people in desperate situations will follow, what else is there left

Think back to all the newsreel clips you have seen of Germany in the thirties........I expect, maybe, the membership of the Nazi Party itself may not have been massive... but there were millions that were happy to throw their hand in the air for Mr Hitler.
Actual membership of our political parties is minimal, but millions of people vote for them at elections, same thing
