But as of now there's a battle happening between BU and core bitcoin (real one) which is making the whole crypto's depending on it's market. If BU will win on this duel then core bitcoin is going to be dead a little by little.
No way, the devil you know is better than the Angel you don't know, the whole BU is just a counterfeit and for it to be established needs a lot of trust from the crypto world which I doubt they'd get because Bitcoin has proven time and time again to be strong and natural but will BU stand the test of time. I'd rather trust the core Devs than some new wannabes.