Being like a brick is probably the simplest way to "git gud": that is, being hard, simple, and dumb. Warrior class, melee focus, get the perks that give you more bondage resist, struggle power, and less stamina consumption on swinging your weapon. Stack your WP and stamina when you get extra points from green stone obelisks. Keep your distraction low, use frigid potions or just let go if you must. Get accuracy bonuses so you can smack elves without them dodging your hits. Get armor pieces that give the most bondage resist. Avoid having the trapped furniture perk, it is the most obnoxious think in the game right now, and it is unfortunately included in the kinky mode by default. Kinky Dungeon is an RPG, at the end of the day. Getting to know each perk and skill and theoricrafting a build then implementing it is key to your success.
Use consumables. Flashbangs are extremely useful as an opener during quests, where the entire horde of enemies is bunched up. It is also good against bosses to keep them stunned and blind. If you are not using the Pacifist perk, then dropping half a dozen bombs underneath yourself as a sort of suicide bomber can also be a good last resort move. You will only lose WP, but your enemies will disappear. Bomb spam also works wonders on bosses, again, only without Pacifist in play.
Even as warrior, you can spec into at least one bondage magic category. I tend to get all leather binding spells. Flashbang into bondage magic spam into melee attacks with enchanted rope or another binding tool can tie up even bosses very quickly. Even if you don't want to capture them, having them helpless allows you to get free hits on them.
That said, both captures and "kills" have their benefit. "Kills" restore your WP and don't require much micro. Captured enemies can be ransomed, brainwashed, and releasing them without a ransom yields a much much smaller reputation penalty than "killing" them. The ransom is very small for trashmobs, but more elite enemies tend to fetch a nice price. Generally speaking, you should "kill" trashmobs of factions you hate, capture and ransom elite enemies of factions you hate, and capture and release without ransom members of factions you want to befriend but are hostile to you. Keep in mind that enemies spawned by quests do not belong to their proper factions, doing anything to them won't damage your reputation and you can't ransom them. You also can't ransom enemies that belong to a faction which does not have a reputation meter, such as Witches' Coven.
If you want to play the summit game, capturing the most powerful enemies and turning them to your side is both a fun challenge and a good goal. You can even do it to all bosses! But it takes a very long time. But at the end of the day, the summit is the solution to its own problems, but you can play the game entirely while ignoring it. Its main functionality right now is to allow the manufacturing of low to mid-level restraints. For that you need raw materials, for which you need to dismantle restraints you have collected, for which you need serveants to work on the machine... And why do you need restraints? To capture and bind more enemies to be brainwashed to be your serveants, of course. Preventing the escape of enemies is only really an issue with bosses, Alron makes it sound a lot worse than it really is. Any other character will stay perfectly put if you wrap them completely even low-tier restraints. You don't have to be in the summit to properly bind captured enemies, you can do it from the collection menu at any time. Even bosses can be bound in such a way that they can never escape, but it requires specific combinations of high-level restraints.