Basically, the game wont let me even get to the welcome screen of the actual game, where it lets you select multi/single player, it just crashes right away.

Put the summary of the bug you're having here

What I expected to happen was...:
log in normally into the game.

What actually happened was...:
it keeps crashing, within around 15 seconds. It wont even let me
get to the welcome screen of minecraft, where it lets you select multiplayer, singleplayer, realms, etc.

Steps to Reproduce:
1. Launch Minecraft
2. Press "Play."
3. Crash.