They are both considered populists but with radically different policies targeting different “enemies of the people.” It just so happens that one side thinks the enemy is anyone who is not a white straight Christian male.
Some people don’t actually care what the policies are, they just want someone to blame and follow whoever they think is fighting for them. It’s nuts but large number of American’s don’t do any basic political research and vote by gut feeling.
It’s cheaper if you don’t have constant load as you are only paying for resources you are actively using. Once you have constant load, you are paying a premium for flexibility you don’t need.
For example, I did a cost estimate of porting one of our high volume, high compute services to an event-driven, serverless architecture and it would be literally millions of dollars a month vs $10,000s a month rolling our own solution with EC2 or ECS instances.
Of course, self hosting in our own data center is even cheaper, where we can buy and run new hardware that we can run for years for a fraction of the cost of even the most cost-effective cloud solutions, as long as you have the people to maintain it.