Go to the game's settings in Steam and download the beta (choose the one selected in the image below)

Boot up the game. If it doesn't work still, go into the files and open both "re2_config.ini" and "re2_config_default.ini" with notepad or another text editing software.

In both files, replace any instance of "DirectX12" to "DirectX11" BUT keep the line that says "Capability" to whatever it was by default.

After these changes have been made, boot up the game and it will boot up normally. This worked for me, and I hope it works for you as well. If this fix did not solve the problem, don't give up, this game is definitely worth it and you should keep trying to get it to work.