You don't think it's plausible that Bush wants the illegals to become citizens?
What has he said or done that would indicate his true belief is anything other than that?
During a break, someone on FNC read off the numbers of all of the illegals prevented from crossing our borders, caught other illegals and sent them home ( something never seen here, nor in the MSM ) during the past 6 years ( and they are far higher than under Clinton ), which were in the many tens of millions.
Obviously, you'd much prefer to talk about what you imagine, rather than to deal in hard, cold, facts.