We need to be as resilient as we possibly can be and those who just mock or say "nope" are irresponsible IMO
Indeed.
The idea the UK is insulated from this by geography is myopic.
Putin has miscalculated in Ukraine, but it's only because of concerted efforts from nations other than Ukraine itself that conflict is still a going concern. Putin also has similar designs on the Baltics, the simple fact they are NATO members will not give him pause for thought, because whether it's in 5 years or 10 years from now, nobody is getting into a hot war with Russia over an annexation of Estonia or similar.
What needs to be understood is that it's one thing to say "oh, but we've got a ton of EU countries between ourselves and Putin", but despots like Putin don't just simply pick one or two nations off and then leave it at that. Once he's taken the Baltics, this further erodes NATO coherence, the resources of the Baltics then become an asset of the Russian "empire", next up it's Finland, and so on and so on, until such point Russia is literally on your doorstep.
This is why the only remotely sensible approach to this problem of war-mongering despots is to destroy them before they get going, otherwise you are just putting off an inevitable confrontation in any case, only if it's delayed then you are going to be in an even worse position and less able to resist as and when the time comes.
Yes, this unfortunately means conflict and death, but until such time we live on a planet devoid of any sort of despotism and demagoguery, there isn't any viable solution to this problem other than the use of military force. You can't reason with people who are not reasonable themselves and will not adhere to any negotiated solution in any case. Ask Ukraine.