Yes you are. But, can you read other’s hearts & minds?
Again, just because I may support a particular candidate, does not mean that I support everything that they stand for. As Jeffrey Erwin said, there are many who do not condone/support abortion , but who also believe that secular law should not be influenced by religious conviction.
Now we can argue that point all day, but the bottom line is- sin is sin, and unless and until Jesus himself comes down from heaven, you will, at times, receive Communion from other sinners. The choice is up to you as to what you do- receive or not, but own your choice and do not blame it on the sins of others.