Locking up the way yours does on the Mojang screen, is going to be related to some other software causing an issue. Try ADWCleaner again and make sure you have run through the full scanning and cleaning process. After that, reinstall the game by removing everything but your saves and screenshot folder from the .minecraft folder. If that still stops at the same point, try another full scan with Malwarebytes.
Lets see if a more detailed game log shows anything. On your launcher, click "Launch options", and click the instance you are using. Then, click the small green arrow in the "Game directory" line. In the folder that opens, open the launcher_log file, and copy its content to http://paste.ubuntu.com. Click "Paste!", then share with us the link (the URL) that it takes you to.
Still seems to be getting the same GL error. Make sure your computer is set to use your AMD hardware. Then also do another reinstall by clearing the .minecraft folder of everything but the saves and screenshots folder.
You should have an option somewhere on the PC called switchable graphics. Make sure its set to use the AMD hardware. If you dont have the option, dont worry for now. Just try reinstalling the games files again.