Have the Allies do an "Inchon" into la Spezia? (1) I don't know they have the sealift to pull that off. (2) How do they support and relieve that force? (3) They'd need a daring and adaptable top General to run the show.
You can bet there will be those post-war who will argue that the USMC could have pulled it off if they'd been allowed into the ETO
Oh no, I'm never born! My poor grampa for sure ended bombed or heroically died defending Porta Ticinese (he was 22 and had military experience, besides being a socialista...)
It sounds like he definitely would have been in the militias but you never know he may well have survived.
But this mean that the allies at least stop nagging about the italian government not being trustworthy while holding them by the balls and sacrificing what remain of the Italian Army to degrade the German capacity
Realistically the Communists are even more expendable than the Regio Esercito.
Stalin iotl was furious on WAllies for just meeting with Germans in Italy in April 1945 and demanded USSR presence.
I wonder how Stalin sees the non help of Milan ittl.
No doubt Soviet propaganda will make play of it after the war but I doubt Stalin would dwell on it too much at the time with bigger issues at play. Checking the PCI was certainly a factor in the Allied peace negotiations with the Germans IOTL however the fact of these being a separate peace, which might indicate a broader one across the western front, was the main cause for the Soviet protest. The PCI by this point had already committed itself to democracy and systemic change following Togliatti's Salerno Turn and Stalin was keen for them disarm and start winning elections despite the fears of the Allies (and the Swiss.) Indeed ITTL Stalin may well be angrier at the internal PCI for indulging in azionismo and ultimately weaking themselves than he is at the Allies for acting to type by abandoning them.
I highly doubt the Allies are going to push further north than Rimini in 1943 or 1944. With Rome in their hands, the political driver for the Italian campaign is effectively gone. This could free up substantial troops for France, perhaps allowing for a landing in Southern France in Spring '44 (A true "Operation Anvil" or a larger D-Day landing.) Given that the Allies won't be able to practice a large scale opposed amphibious landing with no Salerno in TTL and no need for a landing at Anzio, I wonder if they try to do something other than sit on their hands before D-day. Southern France seems the most likely IMO.
Southern France is a compelling target, especially with the French already established on Corsica and the chaos caused by Alaric in the French Riveria. Nonetheless it's a bit of a strategic dead end on its own. The Allies still have the experience of Torch, Husky and the Pacific island hopping. An earlier D-Day is in the cards however.
An AH hypothetical question (double hypothetical?), is how that level of utter brutality in would affect post-war relations between Italy and Germany, and even to the extent of an altered NATO?
An interesting question, the Germans carried out massacres in Italy IOTL but the extent is certainly greater here with Milan being levelled. Both will still fall under the western sphere of influence however the German invasion, occupation, and the events leading up to it will loom large in post-war Italian politics.
honestly the bulk of his protest is why the allies don't push through north Italy to take pressure away from the URSS because they need it now and not the next year
He could probably be reassured with the notion that the 'proper' second front would be delayed by a bloody stalemate in the Alps.