I'm not going to try to convince you of anything about the ACA. I would ask that you make sure you know what you're upset about, though. Hey - if you want to change something, at least know what you want to change and why. What I've quoted of yours above is absolutely false. All insurance is guaranteed issue and there is no allowance for pre-existing condition clauses, period.The poor already were taken care of. And, insurance still doesn't have to cover pre-existing conditions for a year after you sign up (according to employers I've spoken to). So, you pay out a whole year of premiums for no care that you need and therefore you're paying for your present care (which isn't covered in the first year of "coverage") and insurance premiums for a year.
The major reason for high costs and high deductibles in the exchange market is exactly for this reason. Millions of people in this country who had pre-existing conditions and no ability to get health insurance before now have a mechanism to sign up for coverage. They are very expensive to pay claims for and what they pay in premiums/co-insurance/deductible doesn't cover those costs. "Healthy" people who were previously uninsured haven't necessarily signed up (or are eligible for expanded Medicaid) and there aren't enough of them in the risk pool to get premiums down to the point that they are "affordable". This continues the vicious cycle of healthy objectors (those who don't think it is worth it to pay the premium) not entering the market and the "sick" being in the market and the premiums going ever higher.
I'm telling you as straight as I can. Your employer based plan premiums and benefit design did not change significantly because of the ACA (not more than a few %). They changed because of a combination of: the high claims costs of the people in your employer insurance pool and what your employer decided they wanted to do to with the plan benefit design (ie - reduce coverage and increase employee cost share to reduce their portion of health care costs).