Captain America: Cons

Captain America’s plight is that of the anti-registration side – he does not want superhuman activity to be legislated by the government – and that could work against him when it comes to recruiting Scarlet Witch.

Wanda Maximoff lost her brother in a superhuman conflict and, as such, might be all for having it legislated, which could put her and Steve Rogers at odds.

Moreover, the death of her mother due to a Stark Industries shell made her very anti-American for a while. Now that she seems to have accepted that Tony Stark isn’t directly to blame for said death, she may turn her wrath on the red, white and blue of the United States.

With Captain America representing stereotypical American values to a T, siding with him might not be something Scarlet Witch wants to do.