It is not that hard to get into a four year college. For example, Mississippi has 5 schools with CS majors that are good enough to get ABET accreditation (not necessary in most cases, but an indication that the major is not a very low quality one or an IT/MIS major masquerading as a CS major). But the frosh admission standards are not very high, according to http://admissions.msstate.edu/freshman/requirements.php .
Even in California, where people complain about how hard it is to get into UCs, there are non-impacted CSUs that will admit California residents based on https://secure.csumentor.edu/planning/high_school/cal_residents.asp .
However, what people really mean about “harder to get into college” is that it is harder to get into a desirable college, where “desirable” tends to be correlated with selectivity and well-known-ness.
Of course, completing a CS major is another story. The students who barely got into less selective schools may encounter a difficult time in CS if they do not turn around their study habits.
Georgia Southern does not count as a less selective school offering CS and engineering in Georgia (for those who cannot get into GT or UGA)?