

You can do a lot against tax evasions - if you want. Yes, they will find loopholes. But you can close them. Quickly - if you want. They have literal armies of lawyers? Well, hire armies of clerks, they will pay for themselves and make laws without loopholes.
Other countries also have the problems with the birth rates, but Putin is accelerating that. Murdering and crippling his young men in a senseless war. Keeping millions of men in the army away from home, far away from their girlfriends. Pushing people to leave the country, if they can. The problem might be there without Putin, but the war is making it so much worse