Requested feature overview description.
Make it so that you can categorise sets of queries you want to blacklist

Example:

[Violence]
gore
abuse

[Disgust]
feces
urine
scatplay
watersports
fart
diaper
vore

Similarly, quick toggles could use these categories to turn off groups of blacklisted queries all at once:

▼ Blacklisted (5)

☑ Violence 1
☑ Disgust 4

Why would it be useful?

• Makes it easier to use quick toggles by grouping queries together
• Makes it easier to blacklist things that arent covered by tags (or lets say inconsistently covered) by manually adding artist names and whatnot
• Makes it easier to develop tools to manage blacklists since you can use code to fetch specific sets of queries
• Structures blacklists making it easier to handle for users with bigger blacklists

What part(s) of the site page(s) are affected?
Account settings page, posts section

Grouping filters like that would require a somewhat complicated rewrite of the blacklist handler.
Currently, filters aren't really aware of each other, and adding groups like that would complicate things.

An alternative solution to this issue would be adding the ability to change the name of individual queries.
So, for example, the group you have labeled "Violence" would instead be formatted like this:

[Violence] ~gore ~abuse

And it would appear in the filter list exactly like you suggested:

▼ Blacklisted (1)

☑ Violence 1

I understand that it would make the blacklist somewhat more difficult to maintain.
However, it would be significantly easier to implement.

For the time being, you can use blacklist comments to organize your filters.

# Violence
gore
abuse

# Disgust
feces
urine
scatplay
watersports
fart
diaper
vore

Everything that follows a hash sign (#) is ignored by the blacklist.