The text says ANGELS, it's about angels, as in celestial creatures serving God. "False teachers" is your own personal spiritualization without any scriptural proof.
You
can’t be serious…
Jud 1:3 Beloved, although I was very eager to write to you about our common salvation, I found it necessary to write appealing to you to contend for the faith that was once for all delivered to the saints.
Jud 1:4 For certain people have crept in unnoticed who long ago were designated for this condemnation, ungodly people, who pervert the grace of our God into sensuality and deny our only Master and Lord, Jesus Christ.
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Jud 1:8 Yet in like manner these people also, relying on their dreams, defile the flesh, reject authority, and blaspheme the glorious ones.
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Jud 1:10 But these people blaspheme all that they do not understand, and they are destroyed by all that they, like unreasoning animals, understand instinctively.
Jud 1:11 Woe to them! For they walked in the way of Cain and abandoned themselves for the sake of gain to Balaam's error and perished in Korah's rebellion.
Jud 1:12 These are hidden reefs at your love feasts, as they feast with you without fear, shepherds feeding themselves; waterless clouds, swept along by winds; fruitless trees in late autumn, twice dead, uprooted;
Jud 1:13 wild waves of the sea, casting up the foam of their own shame; wandering stars, for whom the gloom of utter darkness has been reserved forever.
Jud 1:14 It was also about these that Enoch, the seventh from Adam, prophesied, saying, “Behold, the Lord comes with ten thousands of his holy ones,
Jud 1:15 to execute judgment on all and to convict all the ungodly of all their deeds of ungodliness that they have committed in such an ungodly way, and of all the harsh things that ungodly sinners have spoken against him.”
Jud 1:16 These are grumblers, malcontents, following their own sinful desires; they are loud-mouthed boasters, showing favoritism to gain advantage. (ESV)
The context is the false teachers that had crept in. They will be judged, just as certain angels will be and those of Sodom and Gomorrah and surrounding cities were. Those were simply the examples he used of pending judgement for false teachers. It’s a call by Jude to “contend for the faith that was once for all delivered to the saints.” That is the context.