If we don't like the practice, we don't do it, should not imposed a ban. But for freedom to religions, we should respect others that do the practice.
To eliminate the Dorje Shugden practice, is this an act of compassion? I think elimination is an act our of anger and dislike. Buddhism practice, we should be promoting peace and harmony and not discrimination or ban to create suffering for others.
HHDL, please revoke your idea of homogenous. Have a dialogue with Shugdenpas and uplift the ban.