Why

Scrolling through a massive list of keybinds isn't fun, especially from a modpackers perspective.
From disabling content & it's keybind being useless, or those mods which add keybinds that are just raw bloat.

It's also easier to play with less keybinds, as the memorization & searching is decreased.

Examples

Useless

These 2 are effectively useless, you aren't going to use them often & the time they save is minimal. Especially when you're a player.
It's literally just:

Escape -> Click

or

Escape -> Click -> "mouse" -> Click -> Click

Broken

Due to mod incompatibilities these don't work everywhere, so I opt to just remove them

I do not really get what you want. Do you want them unfunctional or not listed in the keybindings list?
If it is first. Just unbind them. If it is second. Use a mod (for example: Amecs, Controlling) that filters the keybindings shown.

If you want to make custom filters and keep that filter even after reopening the keybindings list. Than that would be a plausible feature request for Controlling. (Amecs has not really a focus on filtering keybindings)

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