Looks like a very thinly disguised fishing trip for British Right Wing Nationalist Parties, to wit, ‘send them all back where they came from’ - they are, of course, Nazis and have used deliberately similar insignia in the past, and have had a record of supporting Apartheid.
Let me see, what will you do with those who have children born in your country and hold the passport of your country ?
How are you going to maintain the services that these immigrants or dual nationals provide, because in many countries, these ar among the lower levels of employment, such as waiters, cleaners, public transport, street cleaners, these services will virtually collapse.
You appear to be holding a family as hostage, as what you are diong is seizing innocent people and forcibly removing ,them having commited no offence, and indeed they may very well oppose the actions of their relatives.
What distance of family relationship do you propose to include ?
Do you include direct blood relatives such as brothers, sisters father and mothers, do you include guardians, aunts, uncles, in an extended family - such as is more usual in Asian culture -, you have to understand that deporting a significant chunk of one family group will cause social devastation as family groups are broken down and mutual support is compromised.
In truth, what you propose is to effectively criminalise the innocent, and I can think of no better recruiting tool for the terrorists than than that you have proposed.
I’m not going to call you racist, because I don’t know you, however, your proposal is extremely close, be careful of the thin ice you are skirting.