Russia is a fascist state. You are a fascist for supporting it.
The war started when Russia invaded the Donbas, so no.
This is a false equivalency
No, it isn't. Russia is making an unprovoked attack on Ukraine. Allowing them to have any benefits from this attack at all encourages them to try this again, which they certainly would. Trusting Russia to keep to an agreement is like trusting a dingo in a nursery. They promised to respect Ukraine's territory in exchange for Ukraine giving up their nuclear arsenal, and this is the result. The United States guaranteed their security as part of this deal. If Russia were honest, they would never have invaded. If the US were honest, they would have put boots on the ground and sent their own military in to counter the invasion. At the end of the day, Ukraine should've just kept the nukes.
There will be peace when Putin is dead and Russia withdrawals.
Being big and old doesn't make it good. A cesspit is not as good as a house for living in, and being old and over-full doesn't change that.