I agree with much of what you say for there is clearly much commonality today between major political party policies. This is readily evidenced by the limited times that a change of dominance between the major parties rarely leads to any signficant alteration of legislation already passed, despite of often rampant opposition to it when it was proposed and enacted.

Certainly, I think that 'liberal' is now a confusing term as generally the only liberal aspect of conservative parties that are associated with the term is in relation to economics.

The main difference I see today is that parties of the 'Left' tend to be far more orientated towards social justice and equity; whereas those on the 'Right' tend to favour reactionary policies often based on obsolescent religious and other ideology that benefits hierarchy and control of the mass for the benefit of a few. There false claims regarding 'trickle down economics' as benefiting the poorest in the community is an example.