The line tends to be more that this sucks but we tried voting in the other lot and that sucked too.
If you suggest eliminating private property to mitigate certain ills engendered by capitalism, or express another view that is truly antithetical to capitalism then you will find yourself marginalized to the point you cannot influence the system.
Private property is inextricably linked with capitalism. If there is no private property there can be no private ownership of the means of production, hence no capitalism. Conversely, within capitalism there is private ownership of the means of production hence there can be no private property, only personal property.