Hello, Welcome to OSM. The features you removed in this and other changesets are valid. Please stop removing valid OSM data.

You have a new account and might not be aware, On OSM, we do not removed features if they exist on the ground. If it exists on the ground, it is valid data regardless of a feature being public, or private, designated or informal/illegal/unauthorized. Removing them is actually considered vandalism.

Its very clear that these features exist, and if you check out the "L3" Mass property lines layer, it appears its not even on private property but a right of way through some land. If it is a drive way change the tag to "driveway" type, do not removed it.

Also the correct way to handle this is to use OSM's tagging system. access=private, or access=no would be appropriate they are closed the public. Once this is done, services that do use OSM data will reflect that and specify their access. Make sure to give a source for this information.

Please read this for more info:
https://wiki.openstreetmap.org/wiki/Why_we_won't_delete_roads_on_private_property