So basically you're suggesting a race to the bottom?
Please explain exactly how you came to that conclusion.
Either we stop technological advancement and don't remove lower end jobs or we tak those intelligent people making lots of money to look after those with no jobs.
http://en.wikipedia.org/wiki/False_dilemma
The latter makes everyone question why they should be working hard when they could have a good life doing nothing... (As those working would almost certainly have to have more money given to them than today's unemployed).
I see you didn't read the part about changing the focus of motivation.
On the other hand markets change, we move from the field to somewhere else. There will always be jobs of all skill levels available for those that want them. You may have to retrain or move around a little but they will generally be there.
What exactly proves this will be the case forever?, or is this just a massive assumption on your part?.
As automation increases costs fall (less salary costs) which means either prices fall. What could happen then is you have a situation where the employees can potentially work less hours than they do now and the company can hire more people. The whole 2 people working 20hours a week rather than one doing 40 hours. Considering average hours are increasing (and have been for a while) there is plenty of opportunity to do this. On the other side of the coin if a company doesn't choose to do this then they make more profit, which either increases the tax revenue for the government or increases investment and more employees.
If it's not absurd to think people may have to start working shorter weeks (20 hours instead of 40) why is such a step to not think it's a possibility it could go the whole way (in which most people don't need to work due to automation?).
I'm sure society will change, I doubt on the other hand it will change for worse.
Why exactly would a society in which people didn't do work which a trained monkey could do be worse?.
There will always be in/low skilled jobs
Well, you simply don't know this as a fact - it's an assumption based on historical trends (which can't be projected as the variables haved changed)
here will always be high end jobs.
For the foreseeable future, but people do high end jobs for reasons other than material gain - people don't work in call-centres or retail for the same reasons (mastery/contribution/drive etc).
Much like we have seen over the last 200 years. Or we could just use this supposed issue as an excuse to raise taxes and tax the successful more.
It's nothing to do with taxing the successful, it's how to structure society if we end up in a situation we have 10 times the amount of people as we have jobs.
If we had a population of 120,000,000 in the UK in the year 2080 - but only 5,000,000 jobs - how would our society work (if people who are out of work branded "lazy" or are not given support?).
Most jobs can be automated, pretty much all retail can be - almost all customer service/call centre can be - half of all office staff can be from my experience (as most people do glorified data entry), improvements in robotics & AI (along with improvements in manufacturing) could see off a large portion of our manual jobs (rubbish collection) - with only a handful of staff required for exception work (when the automated solution fails).
A call centre of 50 turns into a group of 5.
A checkout which had 30 staff now had 3 to deal with when the self-service machines fail.
I'm not saying that all jobs are going to disappear - just the manual jobs which technology can already replace (or is very close to being able or is in the process of currently replacing).
While new positions may develop, it would be in the areas which require skills beyond a portion of the population which would get displaced.