That is a different issue.
We are talking about the fundamental right and freedom -- or should be -- of the people to form opposition political parties, and yes they should be legally formed, without fear of persecution by the government. If the people, via the government, want to ban foreign influence in these opposition parties and have credible proof that there are foreign influences, it does not mean
ALL opposition political parties are under foreign influence. Foreign influences are legitimate concerns, to the criminality level if necessary, and I, as a democrat (not Democrat), have no issues if China does have such laws. But precisely because I am a democrat I believe that there is an inherent and non-debatable right and freedom of the people to have alternate political views and to create formal organizations to express these alternate views.
The funding sources for these parties are issues of concerns at a lower level of discussion.
The bottom line is that your China does not believe in the same rights and freedoms as we in the West do. If
YOU support at least an authoritarian state, borderline dictatorial, then have the intellectual spine and say so for the record. But do not hide behind the charge that the Falun Gong believers, no matter how loony they may be, are foreign financed and therefore it is legitimate to paint all opposition political parties, in China and elsewhere, as being under foreign influence and can be no other way.