Thanks for the color.
The reason is simple: have lost confidence in the company's ability to handle the current situation. The communications aiming to add context for an educated decision have failed. Ergo prefer to step aside.
Hi, Thank you. Have you tried to negotiate an exit?
If you give the reasons for your resignation they may not pursue you on the basis that might be fearful that you have a constructive dismissal claim against them if you have lost confidence in their ability to provide you with a suitable working environment