I mean they already crushed the value of most patrols, which often spawn in missions as well, so that already reduced mission value, and for snubs, with BMM, Rogues, Mollies, Police Avengers and what not, they have really insane loadouts or are just SHFs and will obliterate you if you hold still for more than 2 seconds, I'm not sure what the overall cap profit is, but I get about 50mil from two high value gunboat missions which nearly kill my scylla cause they sometimes spawn Bounty Hunter Destroyers which took two of us to bring down, and it ended up being more profitable to kill gunboats than try to mess with threshers that take forever to kill and have infinite powercore in comparison to ours.
Should it be equal to trading, I guess, but people will probably still do missions even if they're slightly less profitable than trading, because it's just simply far more fun to do.
Just make trading missions or have more trading events where there's bonus for commodities only rather than a pvp event, and or/also make trading missions if that's even possible.
Don't want missions being touched, leave them alone.