Nooooo. Dont do it.
I was in a bike shop today looking at Cube's. I picked one up and was quite shocked at how heavy it was. Not a patch on my Kilauea.
Cube bikes are actually pretty lightweight compared to their contemporaries & represent very good value for money
Modern bikes generally have much better performing suspension, which will offer a more comfortable & controlled ride compared to retro suspension
Modern bikes also generally have much better braking power and control with hydraulic discs
Yeah a modern bike would weigh more and cost more, but there is a significant performance difference in key areas & if you buy carefully you can get yourself a bargain of a bike.
You say you want a bike that's easier to ride.
I take it you mean one that is easier to pedal?
A quick tyre swap can sort that out, some tyres are heavy and draggy
Or do you mean something else when you say easier to ride?