A couple of comments;
How are we going to do minesweeping?
With robots deployed from FF/DD, rather than special-purpose, special-design, special-build ships with limited broader utility.
part of the reason is that the minewarfare boats are small
There are lots of reasons, such as the current limits on composite construction. One issue is that a smaller vessel has less pressure wake and is thus less likely to set off mines. The disadvantage is that they are very poor at deploying long distances - RN SRMH have a *very* low speed of advance at sea and the Captain of Visby straight up admitted to Jane's that although they are just fab in the littorals, they have great difficulty deploying to someone else's littorals...
The rest of the world has been building Frigates and Corvettes for decades that are impressively capable and then we build... that.
How many of those FF/KK have a massive mission bay and flight deck bigger than LPD-17? Different courses, different horses.
M340 is Orskoy if I remember correctly?
RP1