What are all the ways the bourgeoisie may be frightened into spending more and more of their personal wealth on security while the rate of profit is falling, and make sure those security guards are themselves unmotivated, scared, revolutionary infiltrators, or at the very least self-interested backstabbing coup-plotters?
consult the Narodniks, SRs, and Anarchists of the late 1800s
Why do you think they are going all into robotics and AI?
The ruling class are the masters of causing general chaos when they feel they are being threatened. Notice how in Shakespearean plays, anytime a king is killed, suddenly there's a natural disaster or plague or war etc. That's not just literary devices, its an insinctual understanding Shakespeare had that the ruling class will always make sure the public suffers more than the ruling class during times of upheaval.
The point is to make the public desire order and return to normalcy, and deter further attempts at direct violence against the rulers. In the modern world creating mass suffering and chaos has become even easier with genetically modified viruses, increasing racial and religious hatred, social media manipulation etc.
It is the police that function as the primary instrument of brute force and protecting the property of the bourgeosie from the proles, so if you want to do that plan you'll have to get leftist moles to infiltrate the police force. Infiltrating the police and military is something the far-right have already been working hard at for many, many years and leftists will have a tough time getting a foothold in these domains.
If you really do want to cause trouble for the bourgeosie, the best thing to do is find creative ways to hurt their investments that they wouldn't or couldn't possibly plan or account for, preferrably at the worst possible time. For example, go to a large department store before they open for Black Friday and stick weld all of the doors shut.