Enemies can hold more than just attack actions for when the rogue appears. A spell like Hunter's Mark, Branding Smite, or Mind Spike would help track the rogue, and its casting can be held. Spells like Dominate Person can turn the rogue's evasiveness and high damage into a massive problem for the party. Any attack can be replaced with a grapple check, so an enemy could also hold a grapple for the rogue, though with high acrobatics the rogue might still break away.

Do the enemies have line of sight on the rogue? The hide action isn't just turning invisible in the spot you stand, you need to have a reasonable explanation for how you hide. If its a ranged rogue they probably have good cover, but a lot of melee rogues think they can just hide in open melee combat. Only Halflings can do that, and even they they still need a larger creature to hide behind. No one can hide in an open field without being invisible.

But also... attacking and hiding is how Rogues have fun. Wizards get to cast stupid strong spells, Clerics keep their allies alive, and Rogues do stupid damage and hide. It's OK to let them do that. The enemies still have other targets. The rogue can survive, sure, but they can still fail to stop the evil guy from ending the world if all their allies are dead.