I think that most agree with you. Very few envision any sort of roundup of illegals. The course of action should be to physically close the border (the supply) and then implement severe crack downs with prison time for employers of illegals (the demand). Cutting off of social services should also be implemented as it would also cut off the demand.
I don't have a problem with guest workers, per se, as long as only the worker can come (no children or non-working spouses) and there is a tariff placed on the exported good - in this case labor.
Well thought out plan . I wish more in govt had half your wisdom .