...ah, you bring up the previous guy straight away then reference WWIII, the classic default. You'll be worrying about creating 'offramps' for the fascist invaders next. Take a look around, lots of Ukrainian voices and others bemoaning US timorousness. What's being done now -assisting the victims to 'fight clean" within parameters designed not to upset the the enemy- is clearly not enough.
I mention Trump because that's where the real leadership vacuum lay - or do you deny it?
If there's no off-ramp created for Putin, then the alternative is a war lasting months, leading into years. What's your alternative to creating an off-ramp - a fight to the death until the entire Russian invading force is killed?
As for your bullshit about the enemy not being upset: at least 30,000 of the invading troops are now out of action, in another 3 weeks it'll be 60,000 and their invasion will be close to collapse. Moreover, Russian citizens are fighting inside shops for dwindling supplies of some basic food-stuffs, their stock exchange is more or less permanently shut, inflation will sky-rocket, as will unemployment, China has refused to supply weapons to Putin ... the list goes on.
I'd imagine that Putin and his cronies are plenty upset: invasion stalling, losses mounting, unrest rising inside Russia.
You may blithely dismiss concerns about an escalation to a nuclear WWIII, but NATO has a clear red-line and it doesn't involve sending troops/aircraft into non-NATO countries to directly engage in combat with Russians.