You have already stated this. We are all aware that you say, "We SHOULD cut [economic] ties with them." I predict you will say it over and over again, as if repeition will verify the validity of this assertion--it will not.
Sharing goals, and sharing requirements, and sharing moral premises does NOT make them the same, and does not preclude them from being enemies. The animosity between fascists and socialists is well documented.
While correct in the assertion that they are anti-human, and oppressors of liberty, they are not the same--they are quite different. That they will momentarily set aside their differences underscores the threat that liberty poses to them though.
These practioners of fasism and socialism can hope for momentary gains, but the very nature of their moral premisis is self-destructive, and every example eventually implodes upon itself when in contact with freer markets. The BIG LIE is that good moral principles are weaker, less effective, and at a disadvantage to bad moral principles, and thus bad moral principles must be adopted to win--this is the BIG LIE that socialists and fascists disseminate. Those that ignore reality and embrace that lie are ready to surrender liberty; to capitulate to the supremacy of evil without a fight, and turn against good and free men, to enslave them "for their own good, and the greater good of society."