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Exactly the point I was going to raise.  If things like advanced age, illness, attending those in need, long travel distance, dangerous travel are allowable reasons to not attend Mass, please don’t insist Mass MUST be attended to the point of martyrdom.

Yes, mass must be attended to the point of martyrdom.  That's what millions of Irish Catholics did during the English Persecution (as one of many historical examples).  The examples you gave of "exceptions" are for normal, everyday problems.  We're talking about a situation where a healthy catholic is faced with the situation of either 1) attending a mass 10 minutes away, and face possible martyrdom, or 2) staying at home because they fear practicing their faith.  You have to go with #1.  Option #2 is sinful and a denial of the Faith.
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Depending upon one’s state in life, a Catholic MAY choose to risk his or her life to hear Mass, but it is not a requirement.

The Sunday obligation exists whether one likes it or not.  If martyrdom is the result, then that is a great grace from God.  The practice of our Faith, of which Mass is a primary activity, is not optional.
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There are a few family anecdotes from my great, great grandparents, written down as my grandmother remembered hearing them, of attending Mass at an actual “Mass rock” behind a barn.  Father would attend with the older boys and two girls.  Or mother might attend but father did not.  At least one parent would remain at home along with one older boy, one older girl, and the toddlers and babies who might cry and give away the location.  Precautions were taken so that the children would not become orphans and there might be someone old enough to work that the family wouldn’t be penniless.  There is also an account of a grandfather baptizing his new granddaughter because nobody knew if or when a priest could come.

Your example is not one of a parent "deciding" to attend mass, but of a parent doing his duty for his family.  If a parent didn't have to take care of small children, they would have the obligation to attend the mass.
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What Catholics are not dispensed from is keeping the Lord’s Day holy.  If you truly believe the vaccine police are going to show up at your home and forcibly take your children away to be injected with fetal DNA and raised as pagans, I’d say you have an obligation NOT to attend Mass!  

Sorry, but you cannot skip Mass in order to avoid temporal pain or loss.  If one's children are taken away, then God allowed it.  You can't blame attendance at mass on that evil.  If things are that bad, then it's only a matter of time before one's children are taken regardless.  If it's not on a Sunday, at Church, then it'll be a few days later.

Shut up, Poche.  This has nothing to do with the topic and you know it.  Get out of here. 

Our Sunday obligation is imposed upon us by the Church and is indeed a serious obligation to go to Mass every Sunday and Holy Day under pain of mortal sin, no one disputes this. The issue is, if this type of intimidation of the OP relieves us from this obligation.

I fail to see how it does. Some busybody waiting at the door or off to the side taking names in case the commie gov wants a report of 'who's who and who is doing what' is not directly threatening and is not a legitimate reason to miss Mass. If, as in a NO service for example, assisting at that Mass is in any way a threat to your faith which you can do nothing about, then your obligation is to stay away and you must not go at all, but that simply is not the case here.

If I were you, if under the circuмstances all I have is that Mass, I'd have to keep going to that Mass until I found another one.