mhhh, okay, let's go through some old similar bands I used to listen to but no more since I listened too much to them and post their most similar song (= most or close to the most hardcore / brutal / absolutely not MSM compatible song they have) ...

Do you know:

Hollywood Undead https://www.youtube.com/watch?v=jjjaU5kQV8k

A Day to Remember https://www.youtube.com/watch?v=c-M34ZRM120

Papa Roach https://www.youtube.com/watch?v=-rdmG0k8S8k

Bring Me the Horizon https://www.youtube.com/watch?v=L5uV3gmOH9g

I Prevail (insanely long but very nice intro but if you just want to check out the music, skip to 4:00) https://www.youtube.com/watch?v=0Eh4b0Ge-sM

okay, I'll stop for now haha