But yes finland will be ocvupied asap i guess in few days
Like the last time when Russians tried to conquer Finland. They sent 20 thousand men to Finland who had only 4k, which makes it 5 Russians for every Finnish soldier. The results? Russians lost 3000 vs only 274 dead and 445 injured on the Finnish side. Nowadays with the modern equipment that Finland has (over 100 Leopard 2 tanks and almost 25 thousand men), they are capable of defending themselves against the rusty Soviet-made crap that Russians are sending to battle.
That's not the point though, is it? As you've mentioned yourself, the technology has vastly improved, which would lead to a greater number of casualties. Putin is recruiting soldiers as young as 18-20 years old, nobody deserves such fate, irregardless of what side you're on.
The point is to avoid evolving the war into a larger scale one, because soon enough, it would expand throughout the whole Europe, with huge casualties. Someone needs to pull Putin's plug.