Wasn’t this already tried at least once and then reverted some 2 years later?
In the US in the 1970s, but more recently in Russia as well:
* https://globalnews.ca/news/1469007/russia-abolishes-daylight...
* https://www.theguardian.com/world/2014/jul/01/russia-state-d...
They didn't revert back to a system of switching between DST and ST annually.
It's worth trying again, it's not like it can't be reverted again.