See City of Evanston v. Create, Inc., 85 Ill.2d 101, 51 Ill.Dec. 688, 421 N.E.2d 196 (1981). The only limits on their autonomy are those imposed by the Illinois Constitution, City of Carbondale ex rel. Ham v. Eckert, 76 Ill.App.3d 881, 32 Ill.Dec. 377, 395 N.E.2d 607 (1979), or by the Illinois General Assembly exercising its authority to pre-empt home rule in specific instances. Because we have concluded that the Illinois Constitution permits a ban on certain categories of arms, home rule units such as Morton Grove may properly enact different, even inconsistent, arms restrictions.
¶ 35 This issue appears to have arisen only rarely before our courts. The only case cited by either party which concerns the sale of municipal real property is City of Carbondale ex rel. Ham v. Eckert, 76 Ill.App.3d 881 (1979). In that case, the City of Carbondale passed an ordinance authorizing the sale of certain parcels of real property pursuant to its home rule powers.
Rev. Stat. 1987, ch. 131 1/4, par. 3). Both of these statutory provisions were enacted prior to 1970, however, and it is well settled that to restrict the home rule power, a statute must have been enacted subsequent to the adoption of our Constitution, and a home rule unit's power supersedes any conflicting pre-1970 legislation. County of Cook v. John Sexton Contractors Co. (1979), 75 Ill.2d 494, 389 N.E.2d 553; City of Carbondale ex rel. Ham v. Eckert (1979), 76 Ill. App.3d 881, 395 N.E.2d 607. • 5 Plaintiffs argue most strenuously, however, that ordinance Nos. 612 and 625 are invalid because they were adopted for the private benefit of Consolidated and without any showing that the public interest was served by vacation of the streets and alleys.
The twin evils of blockbusting and white flight may well extend beyond Oak Park's boundaries; yet, the ordinance does not purport to regulate or combat those problems as they pertain to other units of local government — only those which affect the owners of homes who live inside the village. See City of Evanston v. Create, Inc. (1981), 85 Ill.2d 101, 116; City of Carbondale v. Eckert (1979), 76 Ill. App.3d 881, 395 N.E.2d 607. Plaintiffs' reliance on City of Des Plaines v. Chicago North Western Ry. Co. (1976), 65 Ill.2d 1, 357 N.E.2d 433, is of little aid.