We invited about 20 of our friends here to hang ou...

We invited about 20 of our friends here to hang out with my little family. I struggled to enjoy my friends due to the intermittent rude and inconsiderate service.
Mind you through everything I'm about to describe we were offered not one apology or even smile, right from the get go.
I had an infant I needed to nurse out of the hot sun and wanted to order food and there were over a dozen tables open. When I asked to be seated with my friend (who it may be relevant to point out is black), the hostess asked how many, and I said I wasn't sure because I didn't know how many of my friends would want to stand around, sit, chat, or eat. She insisted she needed a number so I shrugged and said six and gestured to a table in the shade I would like to be sat at. She said we couldn't sit there because we couldn't borrow chairs from any of the dozen unoccupied tables. So I said I just wanted to be near my friends (who were standing about nearer to the pier) but get my baby out of the sun. She waved to a table clear on the opposite side of the beach, away from my friends. I ask about a nearer table. She offers to put up an umbrella, which sounded like a great solution, but then after she goes inside to get it she comes out to say it's "too breezy" to give us an umbrella (it's really not.) Exhausted with a fussy baby, I said fine and took the table off in the distance with one other friend, whilst my baffled friends on the other side of the restaurant cast glances at me wondering why I had been isolated to the naughty corner.
My friend didn't have long to stay and asked if there was anything she could order that would come out within twenty minutes. The waitress said she couldn't guarantee much since "It was so busy" (again... maybe at most four of the outside tables were in use.) My friend asked if fries would be quick. Waitress confirmed. So my friend ordered fries.
We keep getting unfriendly glances from a bartender. I'm getting a bad feeling about exactly why he's looking at us that way, but I try to shrug it off.
The fries took so long that my friend ended up leaving as the fries were coming out. I rushed up to the hostess and asked for a box so she could take them home, but the box was so long in coming my friend had to leave before it arrived.
It dawns on me that there is shrimp on the table neither my friend nor I ordered. I text her to ask, and as per my memory she says she didn't.
By now my friends want to join me, but the table is too small and the waitress is avoiding my gaze as I try to get her attention to move to a larger table (since the sun has now become less harsh for my baby.) After twenty minutes of being ignored, we finally just tidy up the table and move our food to the benches. I try to keep myself visible so the waitress can find us. I keep trying to get her attention to order more food and drinks and tell her about the unwanted shrimp and she studiously avoids us.
Eventually I get so fed up I head over to the bar to order a drink with a friend, who is a white male. Although we are standing side by side (and I'm holding a baby) the bartender only takes his order. I wait. And wait. And wait. Everyone around me is served and new people come and are served. I assume perhaps she thought he was ordering for me too? But then she says she'll "be with me in a minute." So I wait some more. After a total of 18 minutes (yeah, I was watching the time) I start complaining loudly to my friend, and she finally serves me.
I return to our table with my drink. The absent waitress finally materializes and says "I was trying to find you" (lol, maybe you should have looked at the woman waving wildly at you for fifteen minutes?) and hands me the check and says someone else will be serving our table (spoiler alert: no one else ever comes to serve us. At all.) and then walks away. I stand up to go get her attention and I tell the waitress we didn't order the shrimp. She says my friend who left ordered it. I tell her my friend says she didnt. They charge me anyway.