Don't be so shallow minded...
Debt slavery for example, relies on debts being permanent and the state jailing people who do not pay.
If a debt can be discharged in an easy bankruptcy, you can simply do that instead of becoming a slave to someone.
from dictionary:
slavery - the state of being a slave.
slave - a person who is _the legal property of another_ and is forced to obey them.
The fact that you use "slavery" as a synonim to hard work and/or high dependance, doesn't make "doesn't come only through the form of physical subjugation" true.
slavery, n. (ˈsleɪvərɪ)Forms: 6-7 slauerie, 6-8 slaverie, 7 slauery, 7- slavery.[f. slave n. 1 + -ery. Cf. MDu. slaverie (Du. slavernij), LG. slaverei (Da. slaveri, Sw. slafveri), G. scl-, sklaverei (skl-, schlaverey).]
slavery, n.
1. Severe toil like that of a slave; heavy labour, hard work, drudgery.
1551: Robinson More's Utopia ii. v. (1895) 161 “In this hal, all vyle seruice, all slauerie,..is done by bondemen.”
1603: Owen Pembrokeshire (1891) 43 “Digginge of Coles, and other slaueryes and extreame toyles.”
1698: Fryer Acc. E. India & P. 34 “Asses which they use..to carry Packs,..and any other Slavery.”
1712: J. James tr. Le Blond's Gardening 65 “To give them continual Waterings..is a very great Slavery and Expence.”
1897: Daily News 13 Sept. 6/7 “Such people..ought never to keep servants, but do their own slavery.”
slavery noun
slav· ery | \ ˈslā-v(ə-)rē \
Definition of slavery
1a: the practice of slaveholding
b: the state of a person who is a chattel of another
2: submission to a dominating influence
3: drudgery, toil
Or [1]: slavery
in British English
(ˈsleɪvərɪ )
NOUN
1. the state or condition of being a slave; a civil relationship whereby one person has absolute power over another and controls his or her life, liberty, and fortune
2. the subjection of a person to another person, esp in being forced into work
3. the condition of being subject to some influence or habit
4. work done in harsh conditions for low pay
Or [2]: slavery
Pronunciation /ˈslāv(ə)rē/ /ˈsleɪv(ə)ri/
NOUN
1. The state of being a slave.
1.1 The practice or system of owning slaves.
1.2 A condition compared to that of a slave in respect of exhausting labor or restricted freedom.
1.3 Excessive dependence on or devotion to something.
Like others said: use better dictionaries.[0] https://www.merriam-webster.com/dictionary/slavery (Merriam-Webster)
[1] https://www.collinsdictionary.com/dictionary/english/slavery (Collins)
[2] https://www.lexico.com/en/definition/slavery (Oxford)
Sorry about the downvotes you received. I’ve been on HN a long time. It is sad to see the great decline of HN. Check out reddit.com/r/TheMotte if you want something a bit more representative and more similar to the HN of old, with its attendant high level of discourse as opposed to the shit-flinging and downvote brigading you see on HN today.