Politics has always been over 90% show and/or spin so they can claim to be "doing something" about a problem. The problems are too complicated in most cases for the average voter to spend enough time learning about and understanding the complexities involved, but heaven forbid you should accuse them of not knowing what they're talking about or voting for - they're too afraid of being seen as "stupid" to admit the truth of the accusation. So they cover it up with arrogance and bravado.
Most of the politicians are just grifters who will tell their voters what they think they want to hear. The voters who have spent their entire lives too afraid of being bullied to feel comfortable admitting when they don't actually know what the best solutions are tend to be the real problem. Then they double-down & dig in further when things go wrong in order to avoid admitting they screwed up, which they keep doing in a vicious loop this making things progressively worse - all because they don't know how to be confident in themselves while also admitting they don't understand something that supposedly matters so much to them. So we wind up doing the same stupid things over and over again because the voters think they sound good at first blush to these obstinate idiots - "idiots" only because they keep doing the same things over and over expecting a different result. They refuse to be open and honest with themselves, let alone anybody else - all because they're too afraid to do so.