I've said this, what, maybe 3 times now? I'm not going to make an all new team. That's a waste of time, effort, and sanity.
As far as I'm aware, my team is already the best that I'm capable of getting it right now at this moment. There is nothing out there that can help it. I've talked to all of the move tutors and all of this stuff, my team CANNOT beat this fight. I've gone through trial and error 15+ times and there's no scenario where I win unless I got a ton of crits.
There are more options besides:
A) Keep smashing your exact same team against the same wall.
B) Changing your team entirely.
So no need to be so Radical. You don't need to "change all your team", just think more about what's giving trouble in that specific battle and what can you do to fix it. Perhaps swapping one or two mons
temporarily would do the trick. And improving your move sets, strategies, use of held items, etc. can also help. Your entire team can't possibly be useless against that trainer if you play your cards well.
Radical Red is not Kaizo, it's difficult but it balances that difficulty by giving players literally more tools than any other rom hack to build and improve your team and lots of options to customize the experience. You have minimal grinding so you don't even have to worry about IVs/EVs; you have Nature change, Ability change, free move relearner, even Egg move relearner at some point. You get most (if not all) items for competitive strategies before the E4. You can also enable Easy mode, which makes your Pokémon gain EVs while the AI doesn't. And you don't even have to worry about losing Focus Sashes and things like that because consumable held items are restored after battle.
It's actually one of the fairest Pokémon rom hacks (At least Default mode, Hardcore and Restricted are a different story) and also one of the less grindy thanks to its different customization settings. You know what's unfair in Pokémon? being able to win a battle just because you grinded 10 levels above your opponent, or because you can spam Revives and Full Restores while your opponent doesn't have that option. Unfairness works for both sides.
The game expects you to actually think your team and strategies. not just play autopilot.
So you have an
Alolan Dugtrio with its HA Sand Force? Well, that's basically no Ability since your team has no way of setting up Sandstorm (and even if it did, it would benefit Dugtrio and hurt the rest of the team). Its regular Tangling Hair would be way more useful in that case.
And you have a Kingdra with Dragon Dance but using Special Attacks, and it's only physical attack is a move that forces Switching, therefore effectively resetting the Dragon Dance boost after one attack.
So your Pokémon clearly weren't the best they could be. There's allways room for improvement and there are more options besides changing your team entirely.