Russia won't be producing any such 'backwards' bombers as those that were destroyed. They are-building/have-built next generation bombers that are far in advance of those that were destroyed.
And with the strength of China and North Korea behind them, and the Israel-Iran war increasing oil prices, Russia is sitting in a stronger and stronger position all the time. Nobody can sanction Russia out of world economics.

Western shills are delusional. If the roles were reversed, and Ukraine was the one that has been building the next generation bombers for some time now already they would be celebrating it. Instead they are dismissing it, because they can't stop drinking kool-aid.
The attack was significant, but these bombers are very old technology and the few that remain would eventually stop working anyway. Each successful attack is an expensive lesson, but they are adapting and learning fast.