I am confused by the question.

The Left is defined by an understanding that

1. the interests of capital and workers are opposed
2. this an irreconcilable difference
3. The working class can and should organize itself to eliminate the capital class, instituting democrat democratic control

The whos, hows, whens, wheres and whatsafters are the details that divide the Left.

The left has been substantially defined by Marxist and other communist ideas. The only other other broad tradition are anarchists. And most left anarchists are influenced by communism if not communist also themselves.

"the robots should take over"

Which one do you mean?

• robots should take over repetitive, boring, dangerous labor that nobody wants to do so everyone's time can be freed up for work and other activities we prefer to do = luxury space communism
• robots should take over control or decision making power = right wing technocrat