Is freedom a lost concept in the USA?

A lost concept? No. One that has been perverted by those that want us to be less free. Definitely.

Live Free or Die! Want my freedom? Come and take it. Remember, you can keep what you can defend.

Are we still free, yes I believe we are. I wake up in the morning and I go to work a job I chose. No one picked it for me. I'm getting paid a wage I agreed upon. I'm not working for food or forced labor. When I complete my work day, I'm free to go home and spend my off time in a manner of my choosing. I can go for a long drive. Spend time with my children. Go to the movies. No one is choosing my paths for me.

Do we have some regulations, of course. Hunting and fishing aren't exactly rights, but they do need to be regulated in order to preserve populations by decreasing overfishing or overhunting species into extinction. Driving is a privilege, and not a right. Motorists should have to adequately demonstrate that they know how to operate a motor vehicle before allowing them permission to be on the road.

Religion might be looked down upon, but no one is holding a torch to your feet and demanding you renounce your God. We are still free to choose to worship or not worship as we see fit. We can be the most devout worshipper, or the most devout nonbeliever.

Do I believe there has been some government overreach, yes of course. But are we still free. Yes. I am not worried about my family disappearing in the middle of the night due to something I might say online.

I don't believe that it has. I feel that now, you are being held to a greater account for anything you do. As I have said in the past, you have the freedom to do whatever you want UNTIL in infringes on the rights of someone else. Freedom of speech is still here and hasn't gone anywhere but there are more people that will hold your feet to the fire if you say something stupid. Religion is fine and always will be UNTIL people feel that their brand of religion should be the standard everyone should follow (which infringes on the rights of everyone that doesn't believe in what you believe).
BLUF, the freedoms many of us remember growing up have and will continue to evolve and change just like it has since its inception. Adapt to it or sit in the corner griping about it. You have the freedom to do either.