To be against from within is to identify critical concentrations of power, become experts in their internal logic, then develop methods for inhabiting and altering their operations. It is to pursue strategies that instrumentalise the oppressors in service of the oppressed. It is by no means a clean path. Trojan Horse attitudes pose many questions about authenticity, autonomy, agency and honesty.
Some contexts demand total stealth. However, without ideological transparency, there is little hope of systemic change. This requires a masterful control of seduction, desire and incentive; guiding by stages towards a radical idea. To play the game is now to game the system.