Marcus the vast majority of the Libertonian population lives in a fluctuating state of poverty, experiencing now an economic and social boom due to their declaration of war on Rheinland. The reality is that Liberty is a sham, it paints itself as an idealistic state where anyone can make a dream, but the reality is much more akin to the depressed states of the '30s.
Pockets of affluence intermix with a majority of exploited labourers and those who can just break even. The Xeno movement itself was derived from workers who felt threatened by job loss from outside sources of labour. That alone should speak to the state of Liberty. Beyond all of that you can pull back the curtain and find that slave labour is at the heart of the economy.
Liberty is a tainted paradise, it wouldn't be a stretch for one dissatisfied group to set their sights on a more idealistic socialist state and take action to in their eyes make it happen.