No, and abolish NATO

That would be a disaster, and not only metaphorically. That would encourage Putin to invade Poland, Baltic States and maybe Finland, and Xi to invade Taiwan. After that US would become toxic and isolated on international stage because it abandoned all it's allies. That would impact trade, and maybe even cause an economic collapse in US. The rest of the world wound meanwhile be dominated by totalitarian, neo-collonial powers like China and Russia. I really can't think of a worse damage America can inflict on itselt and the rest of the world than the abolishment of NATO

Yes, Ukraine should be allowed to join NATO. We as a nation vowed to protect Ukraine if they were to fall under attack we should keep our vow to Ukraine. We as a collective organization must help our member states keep their vows.

If Russia takes the Ukraine, they will keep moving west and try to take back the soviet block countries.

If you abolish NATO, you are giving Russia free reign to do whatever it wants to European countries and damage the world order. Putin already wanted to invade Ukraine and reform the Soviet Empire before the "but they want to join NATO and we don't like that" excuse in 2014.

nato allows small and large countries to protect each other and prevents attacks to that said nation

This strengthens Russia and China and allows them to take Taiwan, and Eastern Europe with more to come after that.

Ukraine could be useful to keep Russia at bay, while abolishing NATO would significantly reduce America's influence on Europe - America's foreign interventions are critical in maintaining global peace

That would be a disaster, and not only metaphorically. That would encourage Putin to invade Poland, Baltic States and maybe Finland, and Xi to invade Taiwan. After that US would become toxic and isolated on international stage because it abandoned all it's allies. That would impact trade, and maybe even cause an economic collapse in US. The rest of the world wound meanwhile be dominated by totalitarian, neo-collonial powers like China and Russia. I really can't think of a worse damage America can inflict on itselt and the rest of the world than the abolishment of NATO.