I'm not sure where your 99.5% figure has come from Hotlungs?
Current figures indicate that 80% of the people infected with Covid-19 recover without needing any medical treatment, so that therefore leaves 20% needing treatment, which increases the strain on hospitals. Last time I checked the WHO figures, 1 in 6 of those people who require hospital treatment have severe difficulty breathing. If we have huge numbers of people all contracting it at the same time, then the hospitals simply won't be able to cope - you only have to look at what happened in Italy to understand the implications, the death rate there last month was 11%. Certainly the death rate in the UK is higher than official figures currently show, because they aren't taking into account figures such as care home deaths, etc that haven't yet been officially reported as Covid-19 cases.
Of the people who recover following medical treatment, we still don't know what the long-term effects on them are going to be. There are reports of lung, heart and liver damage in recovering patients. As things stand right now, it would also seem that reinfection is a possibility.
Lack of information has certainly played a huge part in causing fear and anxiety in people - Covid-19 is still very much an unknown quantity, and so there is a lot of focus on what may potentially happen, and how the government is dealing with it, and questioning of whether they are going about it the right way or the wrong way. In truth, nobody knows, it's a case of working on current scientific advice, which is constantly being updated.
I don't understand why people are comparing it to the same risk as having a car accident, etc. We still don't know the actual scale of deaths from Covid-19. If you can avoid something that you know will hurt you, then you should - for example, I wouldn't get in to my car and drive it off a cliff, or intentionally walk in front of a lorry. Yes, there are risks in life, but accidents are just that - accidents. Viruses spread, and this one has done so (and is doing) at an alarming rate. The thought of unwittingly infecting somebody who could then go on to develop serious complications, and possibly die as a result, it what truly makes me feel fearful right now. Somewhere between the complacency that some people are obviously feeling, and the caution others are exhibiting, there has to be a middle ground for us all to stand on, but it's going to take more time and information for us all to get there.