Was the right thing to do if we want to avoid ww3
I simply don't follow the logic here. I cannot see why donated jets would be Putin's "line in the sand" that would see him declare war on NATO. Let me explain my thinking.
Several Western countries, including the USA, the UK, several EU states and some non-EU NATO countries, have sent and continue to send weapons and munitions in significant volume to Ukraine. Most notably the MANPADs and NLAWs that have been used to significant effect against Russian aircraft and Russian armoured vehicles, enouh that Putin's original timetable of invasion has been completely thrown out the window. Add to that the very public use of Bayraktar drones - donated or sold by Turkey, IIRC, to Ukraine - to slow down and degrade Russian armoured columns and supply vehicles. THEN consider the shipments of bullets, grenades, rifles, machine guns etc etc that have been very openly supplied by various governments - the Finnish government listed exactly what they were sending on their official website!
All this kit is being used to shoot down Russian helicopters and planes, to blow up Russian tanks, to kill Russian troops: but despite it being absolutely confirmed, open knowledge that NATO countries and non-NATO EU countries are supplying this kit, Putin hasn't escalated.
I grudgingly concede that deploying NATO planes / helicopters with NATO pilots would be a different kettle of fish, but just giving the jets to Ukraine in the same way we're giving them hundreds of anti-air and anti-armour weapons each day? No, I don't get it.
Maybe it doesn't matter. Maybe Putin drawing this line is simply more evidence that he's gone entirely off the reservation.
I do wonder what else is being provided by the West though - I bet the number of transport helicopters and armoured fighting vehicles in the Ukrainian military has mysteriously increased in the last ten days.