Whatever movements bitcoin is doing right now takes a lot of time and usually weeks so that is just market movements, sure there could be manipulation that rich people (whales) can increase the price if they want to and decrease the price if they want to and that may look like a pump and dump to you but in order for that to happen it should be done in one hour and not in one month. Look at the coins that goes up 200% in one hour and then drop back to what it was all in one day to see a real pump and dump.
After 10 years of existence, people are still not convinced that Bitcoin is a real deal and not just another pump & dump scheme. I don't know what needs to happen for people to believe. Bitcoin has turbulent times when the price drops heavily, or rise incredibly, that can be seen as some way of pumping and dumping in some moments, but that is the case with every growing industry. Nothing grows instantly, it takes time for developing, for people to see it and start using it.